little, petty, small, small-minded

from The Collaborative International Dictionary of English v.0.48

Narrow-minded \Nar"row-mind`ed\, a.
   Of narrow mental scope; lacking tolerance or breadth of view;
   illiberal; mean. Opposite of {broad-minded}, {open-minded},
   {liberal}. [WordNet sense 2] [Narrower terms: {dogmatic,
   dogmatical}; {little, petty, small, small-minded}]

   Syn: narrowminded, narrow, illiberal, intolerant.
        [1913 Webster + WordNet 1.5]

   2. Capable of being shocked by behavior of others. Opposite
      of {unshockable}. [WordNet sense 1]

   Syn: shockable.
        [WordNet 1.5 +PJC] -- {Nar"row-mind`ed*ness}, n.
        [1913 Webster]